CVE-2021-3505
5.5
MEDIUM
CVSS 3.1
EPSS 0.40%
描述
A flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality.
如何修補 CVE-2021-3505
要修補 CVE-2021-3505,請將受影響套件升級到下列已修補版本。
- —升級至 0.8.0~dev1-1 或更新版本
CVE-2021-3505 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 0.8.0~dev1-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |